NotificationEvent: notification property
Note: This feature is only available in Service Workers.
The notification
read-only property of the NotificationEvent
interface returns the instance of the Notification
that was clicked to fire the event. The Notification
provides read-only access to many properties that were set at the instantiation time of the Notification such as tag
and data
attributes that allow you to store information for deferred use in the notificationclick
event.
Value
A Notification
object.
Examples
js
self.addEventListener("notificationclick", (event) => {
console.log("On notification click");
// Data can be attached to the notification so that you
// can process it in the notificationclick handler.
console.log(`Notification Tag: ${event.notification.tag}`);
console.log(`Notification Data: ${event.notification.data}`);
event.notification.close();
// This looks to see if the current is already open and
// focuses if it is
event.waitUntil(
clients
.matchAll({
type: "window",
})
.then((clientList) => {
for (const client of clientList) {
if (client.url === "/" && "focus" in client) return client.focus();
}
if (clients.openWindow) return clients.openWindow("/");
}),
);
});
Specifications
Specification |
---|
Notifications API Standard # ref-for-dom-notificationevent-notification |
Browser compatibility
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